<template>
    <div>
        <div ref="refChart" style="width: 100%;height:6.25rem;">
        </div>
    </div>
</template>

<script setup lang="ts">
import {onUnmounted, onMounted, ref } from 'vue';
import * as echarts from 'echarts';
import {RequestStatisticGetWasteScale} from '@/api/path/index.js';
type EChartsOption = echarts.EChartsOption;
const refChart = ref();
const chartInstance = ref();
const chartData = ref();

// 获取接口数据
const getData = () => {
  return new Promise((resolve, reject) => {
    RequestStatisticGetWasteScale()
      .then((res: any) => {
        res.resultObj.forEach((item: any) => {
          delete item.measure;
        });
        chartData.value= res.resultObj.reduce((acc, cur) => {
          if (cur.name === "汽油") {
            acc.push(cur);
          } else {
            acc[1] = acc[1] || { name: '其他', value: 0 };
            acc[1].value += cur.value;
          }
          return acc;
        }, []);
        resolve(res.resultObj);
      })
      .catch((err: any) => {
        reject(err);
      });
  });
};
onMounted(async () => {
  await getData();
  // 图表初始化
  initChart();
  // 调用Echarts图表自适应方法
  screenAdapter();
  // Echarts图表自适应
  window.addEventListener('resize', screenAdapter);
});

const initChart = () => {
  chartInstance.value =echarts.init(refChart.value)
  const initOption: EChartsOption = {
    tooltip: {
      trigger: 'item'
    },
    color: ['#017efa', '#b1cbfe', '#51cbff', '#b6e9ff'],
    series: [
      {
        name: '拆解资源占比',
        type: 'pie',
        radius: ['50%', '80%'],
        label: {
          normal: {
            // show: false,
            formatter: '{b}:{d}%',
            position: 'center'
          },
        },
        emphasis: {
          label: {
            show: true,
            fontSize: 16,
            fontWeight: 'bold'
          }
        },
        data: chartData.value
      }
    ]
  };
  // 图表初始化配置
  chartInstance.value?.setOption(initOption);
};
const screenAdapter = () => {
  // 手动的调用图表对象的resize 才能产生效果
  chartInstance.value.resize({width:'auto', animation: { duration: 300 } });
};
onUnmounted(() => {
  // 销毁Echarts图表
  chartInstance.value.dispose();
  chartInstance.value = null;
  // Echarts图表自适应销毁
  window.removeEventListener('resize', screenAdapter);
});
</script>
<style lang="scss" scoped></style>